fixes

tests/test_micromesh.py

@@ -103,6 +103,25 @@ class MicroMeshTests(unittest.TestCase):
         self.assertEqual(len(interface.poll()), 1)
         self.assertIs(interface.config_complete, True)
 
+    def test_poll_can_report_and_skip_bad_frames(self):
+        errors = []
+        bad = frame(b"\x12\x05no")
+        good = frame(FromRadio(config_complete_id=123).SerializeToString())
+        interface = SerialInterface(
+            FakeUART(bad + good),
+            on_error=lambda error, payload: errors.append((error, payload)),
+        )
+        interface.config_id = 123
+        messages = interface.poll()
+        self.assertEqual(len(messages), 1)
+        self.assertEqual(len(errors), 1)
+        self.assertEqual(errors[0][1], b"\x12\x05no")
+        self.assertIs(interface.config_complete, True)
+
+    def test_nested_decode_errors_include_the_field_path(self):
+        with self.assertRaisesRegex(DecodeError, "FromRadio.packet"):
+            FromRadio().ParseFromString(b"\x12\x03\x22\x05x")
+
     def test_truncated_message_raises(self):
         with self.assertRaises(DecodeError):
             Data().ParseFromString(b"\x12\x05no")